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Model comparison using working correlation structure to estimate BMI changes over time among adults receiving ART at Felegehiwot comprehensive specialized hospital, 2023.
| S. no. | Working correlation structure | QIC value |
|---|---|---|
| 1 | Exchangeable | 17,992.29 |
| 2 | Autoregressive (AR1) | 18,007.422 |
| 3 | Unstructured | 1,820,012 |
| 4 | Independent | 17,994.712 |
| 5 | Stationary (M-dependent) | 180,023 |
QIC quasi-likelihood under Independence model Criterion.
